Horseshoes riding school in maidstone used to deal when I worked there 10 years ago. don't know if they still do but definitely worth a try as they would have exactly this sort of horse. Nothing that will set the world alight but lovely sensible rides. Being a RS they couldn't afford to get a bad reputation in the community.
a friend bought a connie x from a dealer in kent and hes fab! will ask for the name as she really rates them - in fact, Vik if you're lurking, post the link to their website please!
A friend of mine once mentioned one called Candida Martin or Martyn (think the advert in the H&H is for Martins (martyns) Irsih Sports Horses or something like that? Her words were that she had only heard good about her, that she isn't cheap but that she did have a good reputaion. Think she also has a website and when I was looking for a horse for a friend of mine, she didn;t have anything suitable at that time but came accross very well on the phone. She is based at East or West Farleigh, just outside of Maidstone I believe. Hope this helps a little though obviously is all based on hearsay and word of mouth.
pm me please can recommend a totally honest lovely person in orpington that i would recommend wholeheartedly and i only now have her mobile number which i cant put on here of course.